221772560

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{145903}}^1$

素因数の和:145935

約数の個数: 40

約数和(自身を含む): 542762880

約数和(自身を除く): 320990320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 145903, 291806, 583612, 729515, 1167224, 1459030, 2334448, 2772157, 2918060, 5544314, 5836120, 11088628, 11672240, 13860785, 22177256, 27721570, 44354512, 55443140, 110886280, 221772560]

約数ペア:

[(1, 221772560), (2, 110886280), (4, 55443140), (5, 44354512), (8, 27721570), (10, 22177256), (16, 13860785), (19, 11672240), (20, 11088628), (38, 5836120), (40, 5544314), (76, 2918060), (80, 2772157), (95, 2334448), (152, 1459030), (190, 1167224), (304, 729515), (380, 583612), (760, 291806), (1520, 145903)]